> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/pt-br/web-vulnerabilities/insecure-direct-object-reference-idor-attack/idors-techniques-pentesting-web.md).

# Técnicas de IDOR

> Para explorar uma vulnerabilidade IDOR, um invasor pode tentar **modificar o identificador de um objeto** na URL ou usar uma ferramenta automatizada para testar valores diferentes. Se o invasor encontrar um identificador que permita acesso a um recurso que não deveria estar disponível, a vulnerabilidade IDOR foi explorada com sucesso.

<figure><img src="/files/6b9425f92cf5b409a2f6705640215420a1c0bfca" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/f73f309eae2270d3d0cefec597ac9ab9ebab724c" alt="" width="563"><figcaption></figcaption></figure>

## IDOR:

* criamos um arquivo que nós **retorna o identificador** como o número 1062:

<figure><img src="/files/116694f8811cfc881b92e31de513b9fad33b57e8" alt="" width="563"><figcaption></figcaption></figure>

<figure><img src="/files/d9b1b27180ba77cbd2c4ab370efea1bbc187e7be" alt="" width="563"><figcaption></figcaption></figure>

Se filtrarmos por outro número, isso indica que o documento **não existe**:

<figure><img src="/files/32c11d94174382578c7eceeecd94832d448fc6c3" alt="" width="563"><figcaption></figcaption></figure>

### força bruta:

* lançamos um ataque de **força bruta** para filtrar o arquivo que existe:

```bash
wfuzz --hh=10703,1233 -c -t 200 -z range,1-1500 -d 'pdf_id=FUZZ' http://localhost:5000/download

```

<figure><img src="/files/4d08f8b078c803f5b28bad302664590ab0b5d10a" alt="" width="563"><figcaption></figcaption></figure>


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